Clarification of the effect of temperature and strain rate on workpiece deformation behaviour in metal forming processes

Wenbin Zhou, Jianguo Lin (Lead / Corresponding author), Daniel S. Balint, Trevor A. Dean

Research output: Contribution to journalArticlepeer-review

38 Citations (Scopus)
36 Downloads (Pure)

Abstract

In analysing metal forming processes the deformation mechanism map (elastic-plastic, elastic-viscoplastic, or creep type behaviour) for a particular process is commonly built solely in relation to temperature; which can be acceptable for a defined modest strain rate range. However, for a given temperature, if strain rate variation is large, the deformation mechanism could vary significantly. In this paper, a deformation mechanism map is proposed to clarify the interacting effect of deformation conditions (temperature and strain rate) on workpiece behaviour in metal forming processes. Rate type deformation equations which can be used to comprehensively model the effect of temperature and strain rate on deformation mechanism characteristics are elucidated and as examples, determined for Ti–6Al–4V and Al–Mg alloy.
Original languageEnglish
Article number103815
Number of pages6
JournalInternational Journal of Machine Tools and & Manufacture
Volume171
Early online date14 Oct 2021
DOIs
Publication statusPublished - Dec 2021

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